TNS Astronomical Transient Report No. 266594 [ 2025TNSTR3282....1S ]

Date Received (UTC): 2025-08-19 14:25:22
Date made public:
Sender: ZTF_MMA_bot
Reporting Group: ZTF     Discovery Data Source: ZTF

Robert Stein (UMD) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: AT 2025unn
Discoverer internal name: ZTF25abjmmpa
Coordinates (J2000): RA = 15:56:39.691 (239.1653791) DEC = +33:15:21.66 (33.2560155)
Discovery date: 2025-08-18 04:15:45.996 (JD=2460905.6776157)



Photometry

Discovery (first detection):
Discovery date: 2025-08-18 04:15:45.996
Flux: 21.4514 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-08-10 07:24:49
Limiting flux: 18.7877 ABMag
Filter: i-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://www.wis-tns.org/object/2025unn